Brake



Jan. 1, 1935'. w, HARDY 1,986,728

BRAKEY Filed July 11, 195s INVENTOR ATTORN EY i' The object ofthe f invention is to provide `a fl brake particularly adaptable for incorporation ifi 'motor "vehicle constructions to impose a ybrak-` .,ihgfactionon the wheel thai-,will `be intensified .diskfmember being. mounted `forangular orrturnf 46by5`the momentum ofV thevehicle following the linitialmove'ment ofthe means designed for setl*ting thebraketo provide "a brake which may #be made part vof-"the conventional vehicle con- Y struction without" materiau modifieationV of the latter-iandto 'providea" brake of the kind indi- "cated which is Aof simple form,` constructed of but few parts, and of a character which makes for cheap manufacture.

vWith this object in view, the invention consists in a construction and combination of parts of which a preferred embodiment is illustrated in 4 the accompanying drawing but to which embodiment the invention is not to be restricted; Continued use in practice may dictate certainohanges or alterations and the Vright is claimed to make any which fall within the scope of the annexed claims. l

4 In the drawing:

Figure l is a view partly in section of a portion of a vehicle wheel and associated axle, showing `the invention applied in operative position thereon. p l t 4 p 4 Figure 2 is a sectional view on the plane indicated by the line 2--2 of Figure 1. 4

Figure 3` is a fragmentary plan view,rpartly ture as shown in Figure 1. l

The invention is designed for application vehicle equipment to arrest the turning movement of the vehicle wheel mounted upon and rotating in common with the axle 5; the wheel carrying a brake element 6 which, in theillustrated embodiment, is in the form of adisk which may be made separate from the wheel but rigidly secured with respect thereto or which may be made an element of the diskA portion of a wheel where the latter is of the disk type. The wheel carried braking element 6 is disposed opposite the chassis carried brakeelement `7 which is in the form of a disk and which is provided with spaced,

concentric annular flanges 9 extending laterally ina direction away from the brake element 6. Interposed between the disk 7 andthe disk or brake element 6 is a friction disk or lining 8 which may be floatingly mounted between the disks 6 and 7 or secured to either one but not both.

lThe disk 7 is movedv toward and away from the -disk 6 by the direct operation of radial members 10, which are in the Aform of` short shafts, jour-` nalled in the annular anges 9 of the diski'l and :the axle housing. 114.

NJ; l

yrminsily provided with reliefs .off whcn the "inner rollers traverse slots "11xformed in the' lateral annular flangeslZ of afdisk member 13, this The drum 1 '17.4 is fobviously 4lixedwwith respect t to The sions 11 m the sangen 'and ine slots i5 in the iiange 16 have their longitudinal axes arranged in angularly related planes andthe planes of the axes ofthe two different sets of slots have the angle formed by them bisectedby the plane of the axis of the axle 5; In other Words, the slots 11 have an angular position with respect to the axis of theaide 5 and the slots l5 have a similar relation with respect to the axis of the axle but their angular position, while equal to that of the slots l1, is opposite to that of the latter. Thusyif anl guiar or turning movementbe imparted to the disk member 13 there will be initial angular or turning movement imparted to the disk 7 by reason of the operative connections provided between the two disks inthe form of the radial shafts 10 with their terminal roller portions. But this angular or turning movement imparted to the disk 7 y is attended with a movement toward the disk 6,

by reason of the outer rolls of the radial shafts traversing the slots 15. If the angular or turning l movement be imparted to the disk 13 through the operation of a foot lever or what-not, the relative movement of the cam slots 1l and 15 will result in lateral movement of the disk 7 until the lining or friction disk 8 is firmly compressed between it and the disk 6. But the disk 6 is rotating by virtue of the wheel to which it is attached and the tendency,`therefore, ris to carry the disk 'l with it and therefore effect further traverse of the roller heads of the shafts 10 along 'their respective cam slots with a resultant increase in pressure of the disk 7 on the lining or friction disk 8 and a greater pressureof the latter upon the disk 6. Thus, the brake being initially set by foot action, increased braking action is effected by the momentum of the car. A,

Any acceptable means may be employed for actuating the disk 13 and in the illustrated embodiconnection 19. The pull rod 18 maybe connected 4 to a foot pedalior equivalent device. 4

claimed as new and useful is:

1. A brake comprising a wheel having a brake disk carried thereby, a drum, a brake disk located within the drum, an independent angularly movable member within the drum, said member and said drum having cam slots, and means carried byl the second said disk and disposed in said cam slots to traverse the same on angular or turning movement being A.iniparted 1 to said r independent member', -whe'reby thesecond said disk; isi` moved toward and away from the wheelcarried disk.

2. A brake comprising a wheel having a brake a; disk, a drum, a second disk housed in the and movable toward and away from the vvl'ie'el-N carried disk, an angularly movablegmember eidrumfcarried fslots having: their longitudinal` axes ',-zdisp'osed in planes at, angles toftherplanes of` the clongitudinal `axes `of Ithe member carried slots.

4. A brake comprising a Wheel having abrake y 1,986,728 ii fi The invention having been described, what is disk, a drum, a second disk housed in the drum and movable toward and away from the Wheel carried disk, an angularly movable member housed the drum, and 'means carried by said second disk and traversing cam slots formed in 5 said drum and said member respectively, the drum carried slots having their longitudinal axes disposed in planes at angles to the planes of the longitudinal axes of the member carried slots with the angles. bisected bywplanesin-whioh the axis 10 5. A brake comprising a. wheel having a brake disk carried thereby, an axle-carried drum, a brake disk located Within the drum, an independ- Aent angularly movable member positioned within l5 fthedrumandrformed with an annular flange, the housed inthe drum, and means carried by`said second disk and traversing-camslots formed-in@- said drum and said member respectively n. y

3. A brake comprising a Wheel having a brakel disky aAv drum, a. secondfdisk housed fthe. drum andmovable toward and away from .the .wheel z carried -.disk,- an angul'arlv vfmovable member housed in f ythe drum, and means. carried.y by .said

second disk and traversingcam slotsrformed in f saide drumv and i saidv member respectively, the

drumY having an annular ange concentric with the Vfla-rige lof -said member, means for imparting A angularemvement to said member, the brake disk beingformed with spaced concentric annular 20 .frangesrinterposedf betweengthewanges of said drum Eand said memberfplradially arranged shafts vrrotatablymountedAin the; anges of said brake disk, th eianges of saidfrn'ember and said drum lbeingiformedwith slots Whose axes are respecij25 tively at reverse angles to the axisoi said wheel, .and rollers mounted et. the oppositeextremities .icfq-.saidshafts and respectively traversing the .-dlllm and membelfcal'led Slots` v.

- 4 p ,WOODROW HARDY. :110 

